How to read environment variable "ProgramFiles(x86)" in CMake

Question

How can I read the value of the ProgramFiles(x86) environment variable using CMake's $ENV variable?

# work fine
message( "$ENV{ProgramW6432}" )
message( "$ENV{ProgramFiles}" )
# error parsing (
message( "$ENV{ProgramFile(x86)}" )

The brackets are causing CMake's parser to choke.

TIA

Answer 1

That's a know issue.

Try escaping the parentheses:

message("$ENV{ProgramFiles\(x86\)}")

Or use a temporary variable:

set(_pf_x86 "ProgramFiles(x86)")
message("$ENV{${_pf_x86 }}")

Answer 2

Escape the parentheses with backslashes, i.e.:

message( "$ENV{ProgramFiles\(x86\)}" )